[INFO] fetching crate lfu_cache 1.2.1...
[INFO] testing lfu_cache-1.2.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate lfu_cache 1.2.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate lfu_cache 1.2.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate lfu_cache 1.2.1
[INFO] finished tweaking crates.io crate lfu_cache 1.2.1
[INFO] tweaked toml for crates.io crate lfu_cache 1.2.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05cbb6f797b8bad2afc4f6c2776b7ae0dafc1bc0efef9ed92845b1bb7e9b6edb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "05cbb6f797b8bad2afc4f6c2776b7ae0dafc1bc0efef9ed92845b1bb7e9b6edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05cbb6f797b8bad2afc4f6c2776b7ae0dafc1bc0efef9ed92845b1bb7e9b6edb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05cbb6f797b8bad2afc4f6c2776b7ae0dafc1bc0efef9ed92845b1bb7e9b6edb", kill_on_drop: false }`
[INFO] [stdout] 05cbb6f797b8bad2afc4f6c2776b7ae0dafc1bc0efef9ed92845b1bb7e9b6edb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 3b9a179ef95904ef87871a6006d1cca20c3f618d7d46dbf7032a5912d7b445bc
[INFO] running `Command { std: "docker" "start" "-a" "3b9a179ef95904ef87871a6006d1cca20c3f618d7d46dbf7032a5912d7b445bc", kill_on_drop: false }`
[INFO] [stderr]    Compiling lfu_cache v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "3b9a179ef95904ef87871a6006d1cca20c3f618d7d46dbf7032a5912d7b445bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3b9a179ef95904ef87871a6006d1cca20c3f618d7d46dbf7032a5912d7b445bc", kill_on_drop: false }`
[INFO] [stdout] 3b9a179ef95904ef87871a6006d1cca20c3f618d7d46dbf7032a5912d7b445bc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1980448e6cf2694a5e464ddf8128841da47664d2538d344be1554cb6c7e12ad5
[INFO] running `Command { std: "docker" "start" "-a" "1980448e6cf2694a5e464ddf8128841da47664d2538d344be1554cb6c7e12ad5", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling plotters-backend v0.3.2
[INFO] [stderr]    Compiling regex-automata v0.1.10
[INFO] [stderr]    Compiling half v1.8.2
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling oorandom v11.1.3
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling clap v2.33.3
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling serde_json v1.0.71
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling serde_cbor v0.11.2
[INFO] [stderr]    Compiling plotters-svg v0.3.1
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling csv-core v0.1.10
[INFO] [stderr]    Compiling bstr v0.2.17
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling plotters v0.3.1
[INFO] [stderr]    Compiling cast v0.2.7
[INFO] [stderr]    Compiling tinytemplate v1.2.1
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling csv v1.1.6
[INFO] [stderr]    Compiling criterion-plot v0.4.4
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling criterion v0.3.5
[INFO] [stderr]    Compiling lfu_cache v1.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1m 19s
[INFO] running `Command { std: "docker" "inspect" "1980448e6cf2694a5e464ddf8128841da47664d2538d344be1554cb6c7e12ad5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1980448e6cf2694a5e464ddf8128841da47664d2538d344be1554cb6c7e12ad5", kill_on_drop: false }`
[INFO] [stdout] 1980448e6cf2694a5e464ddf8128841da47664d2538d344be1554cb6c7e12ad5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] d357a68faf551d9db625e0def7f20635c290d897039b1864131e08d196c33cc5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d357a68faf551d9db625e0def7f20635c290d897039b1864131e08d196c33cc5", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.16s
[INFO] [stdout] running 37 tests
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/lfu_cache-82e40c5022b3aa74)
[INFO] [stdout] test lfu::frequency_list::init_front_empty ... ok
[INFO] [stdout] test lfu::frequency_list::init_front_non_empty ... ok
[INFO] [stdout] test lfu::frequency_list::new_is_empty ... ok
[INFO] [stdout] test lfu::get::bounded_alternating_values ... ok
[INFO] [stdout] test lfu::get::empty ... ok
[INFO] [stdout] test lfu::get::get_mut ... ok
[INFO] [stdout] test lfu::entry::new_constructs_dangling_entry_with_owner ... ok
[INFO] [stdout] test lfu::get::getting_is_ok_after_adding_other_value ... ok
[INFO] [stdout] test lfu::insert::insert_bounded ... ok
[INFO] [stdout] test lfu::insert::insert_returns_evicted ... ok
[INFO] [stdout] test lfu::bookkeeping::freq_list_multi_items ... ok
[INFO] [stdout] test lfu::bookkeeping::unbounded_is_unbounded ... ok
[INFO] [stdout] test lfu::bookkeeping::getting_one_element_has_constant_freq_list_size ... ok
[INFO] [stdout] test lfu::pop::pop ... ok
[INFO] [stdout] test lfu::bookkeeping::freq_list_node_merges ... ok
[INFO] [stdout] test lfu::insert::insert_unbounded ... ok
[INFO] [stdout] test lfu::insert::reinsertion_of_same_key_resets_freq ... ok
[INFO] [stdout] test lfu::node::append_empty ... ok
[INFO] [stdout] test lfu::node::append_non_empty ... ok
[INFO] [stdout] test lfu::node::create_increment_next_non_empty ... ok
[INFO] [stdout] test lfu::node::create_increment_next_empty ... ok
[INFO] [stdout] test lfu::node::peek_empty ... ok
[INFO] [stdout] test lfu::node::peek_non_empty ... ok
[INFO] [stdout] test lfu::node::pop_empty ... ok
[INFO] [stdout] test lfu::bookkeeping::clear_is_ok ... ok
[INFO] [stdout] test lfu::remove::remove_empty ... ok
[INFO] [stdout] test lfu::remove::remove_end ... ok
[INFO] [stdout] test lfu::pop::pop_empty ... ok
[INFO] [stdout] test lfu::node::pop_single ... ok
[INFO] [stdout] test lfu::node::pop_non_empty ... ok
[INFO] [stdout] test lfu::remove::remove_middle ... ok
[INFO] [stdout] test lfu::remove::remove_start ... ok
[INFO] [stdout] test lfu::remove::remove_to_empty ... ok
[INFO] [stdout] test lfu::remove::remove_to_nonempty ... ok
[INFO] [stdout] test lfu::bookkeeping::capacity_reports_internal_capacity ... ok
[INFO] [stdout] test timed_lfu::timed::non_expired_remains ... ok
[INFO] [stderr]    Doc-tests lfu_cache
[INFO] [stdout] test timed_lfu::timed::old_items_are_evicted ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 37 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.51s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lfu.rs - lfu::LfuCache<Key,Value>::with_capacity (line 50) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.97s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "d357a68faf551d9db625e0def7f20635c290d897039b1864131e08d196c33cc5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d357a68faf551d9db625e0def7f20635c290d897039b1864131e08d196c33cc5", kill_on_drop: false }`
[INFO] [stdout] d357a68faf551d9db625e0def7f20635c290d897039b1864131e08d196c33cc5